Andrew winter-burn



A. WINTERBURN.

STOVE GRATE.

N0.104,Z4Z; Patented June 14, 1870.

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Letters Patent No. 104,242, eta-a June 14-, 1870.

STOVB-GRA'I'E.

The Schedule referred to in these Lettem Patent and making'parfo! the same.

To all whom it may concern Be it'known that I, ANDREW WINTERBURN, of the city and county of Albany, Stateof New York, have invented certain new and useful Improvements in Grates for Cooking-Stoves, Cooking-Ranges, and Fornaces; and I do hereby declaredhat the following is a description thereof, reference being bad to the accompanying drawing forming a part of this specification, in which- Figure 1 representsa perspective vic of 'myinvention, with portions of the bed-plate of th same broken away, illustrating the manner in which the grate-bars are set therein.

Figure 2 is a cross-section, on an enlarged scale, (than the perspective.) of a-section of the grate, taken at right angles with the grate-bars comprising the getting, and illustrating the several bars as being oscil- Figure 3 is a longitudinal view, on the same scale of a grate-bar, and a cross-section of the bed-plate of the same, and the connecting-rod used to operate this invention.

The same letters indicate like parts.

The bed-plate, which is to hold and carry the several parts of this invention, consists of the plate A, constructed with any suitable modification of form that would be required to adapt this invention to the style" of cooking-stove, range, or furnace with which it is to be used.

To the said bed-plate'A are cast or attached securely the vertical flanges B B, which flanges are each furnished with U-shaped bearings, c, in number to correspond with the grate-bars to be used. The said bed-plate, consisting of the plate A and flanges B, is to be placed in the bottom of the fire-box of the stove, range, or furnace, and may be constructed to maintain one position, or be arranged to be capable of being swung or dumped, if desired, by making, with each end of the said bed-plate, a rounded spindle or journal, .which would work in proper bearings in the firebox or sides of the stoves, or equivalents.

The giate consists of several bars, 1), made of a length of body proportionate with the stove, range, or furnace they are to be applied-to.

The said bars D are "provided at each end of bodies with journals, f j; figs. 1 and 3, which journals are to work into the U-shaped bearings c 0.

One end of eachof the said bars D is provided with a hooked crank, i. The said bars are so arranged that the said cranks t of the several, bars will all range on one and the same side of the bed-plate, as shown infig. 1;. and, when the said bars are thus arranged, each bar 1) will be capable of being oscillated or rolled in such a manner that their upper surfaces can be turned from a horizontal plane to that of an incline, as shown in fig. 2, and to the reverse.

- To operate the several gratesbarsD simultaneously, and impart to the same the oscillating movement described above, 1 use a connectingrod, H, which rod is provided with a number of eyes, shown in fig. 1, and by dotted lines in fig. 2, corresponding with the number of bars Dvnsed. Each eye of the said rod H is to receive a'crank-cnd, 'i, of the said bars, as shown in the several figures.

The said connecting-bar H is also provided with a handle on one end, by which the said bar can be operated in a reciprocating manner, so as to impart the desired oscillating movement to each and every bar D. Should the bed-plate be made fixed in the fire-box of the stove, or equivalent, this invention is to be used with, I would permit the handle end to work through any suitable hole or slot in the side of the said stove. But, if it is intended to have the said bedplate swing so as to be capable of being dumped, I would form the said handle end of the connecting-rod H so as 'to turn down to an angle, so that the said handle would not present itself as an obstacle against such swinging or dumping of the whole.

I also make on the journal end ofcach grate-bar D, and on the lower sides of the same, projectinglips, g, (or its equivalent, a partial flange,) which will be capable of preventing the said journal endsof the said bars being drawn out of their bearings c, and in the direction of the crank ends 1'. And while the said lips g (or their partially flanged equivalents) prevent the said ,ba'rs being displaced by a longitudinal movement, in a direction toward the crank side of the grate, the cranks i will, on their part, prevent the said bars being'moved in a direction opposite or toward thelipped journal side of the grate; thus, by both the lipsg and cranks e, the said grate-liars D will be retained in their proper position against any accidental displacement from their places in the bed-plate.

In practical use, the several parts of this invention operate as follows:

The body of fuel, with ashes and cinders intermixed, is supported by the several grate-bars D. When the ashes and cinder s are to be removed from the body of fuel in the fire-box, the operator, either by his hand or with a suitable hooked instrument entering the eye of the handle, grasps the handleof the connect.- ing-rod H, and, by pulling the said rod in a horizontal direction, will, by the eyes of the said rod, carry the cranks t' in the direction the said rod H was drawn, and will cause the bodies of the said bars D to roll on their journals ff, and cause the top surfaces of the said.

bars .to turn out from a horizontal line to that of an inclined position, as shown in fig. 2. The ashes and cinders being softer and more easily broken than the coal, will, in being crushed, drop down inthe trough formed by the i'rclihe given to the, top surfaces and the sides of each contiguous bar. When the said connecting-bar is pushed back past its normal position to a distance equal tothat it wasfirst drawn, the inclination of the tops of the several bars will be reversed, and the depressed top corners of the several bars D, when being thrown up,.will throw the ashes and cinders lying on them upward against the body of the fuel, and carry said ashes, &c., to an inclination to fall in a second series of troughs in the reverse from he first. I

The operation being continued, the several throws of the many grate-bans will continually change the positions of their top surfaces, and reverse, alternately, the forms of the several troughs, and effectually agitate, crush, and work out the ashes and cinders from the more solid and uncousumed coal.

It is to be understood that the bed-plate, consisting of the plate A and flanges B are (in any of the modified forms it may be made) to be considered as a part of the stove, range, or furnace this invention is to be used with, if the grate, as a whole, is to be fixedin a horizontal position; but, if the grate was to be constructed to swing or dump, as intimated, the said'bed bed-plate would be considered as properly belonging to the grate and forming apart of the same, and would be subject for'another patent.

aving described my invention,

What I claim, and desire to secure by Letters Patent, is-

- 1. A grate for a cooking-stove, cooking-range, or

furnace, consisting of the several bars D, formedwith journals ff, rolling in bearings c c, and provided with crank ends 0, in ecmbination with the connecting-rod H, when all are constructed and arranged to operate substantially in the manner set forth, for the purpose specified.

2. The combination of the lip g and crank ends 1', with the grate-barD, substantially as and for the purpose set forth. V

. A. WINTERBURN.

Witnesses:

J. A. Bucxnnn, ALEX. SELKIRK. 

